Heater for intake manifolds



Patented Aug. 4, 1925.

UNITED STATES PATENT OFFICE.

JOSEPH S. LOSEE, F HEBRON, ILLINOIS.

HEATER FOR INTAKE MANIFOLDS.

Application filed January 27, 1923.

.7 '0 all whom it may concern:

Be it known that I, JosnrH S. Losnn, a

V citizen of the United States, residing at Hethe accompanying drawings in which,

iii

Figure 1 is a side elevation of an automobile engine equipped with my invention;

Fig. 2 is an enlarged partial section through the same; and

Fig. 3 is a section on the line 3 of Fig. 2.

The embodiment shown comprises a heater applied to a Ford engine having an exhaust manifold 10, an intake manifold 11, and a carbureter 12. The intake manifold has a vertical leg 11 which has substantially a right angle bend 11 which connects with the horizontal mixing passage 13 of the carbureter.

This arrangement which is commonly used on several makes of automobile engines causes the unvaporized liquid fuel in the mixture coming from the carbureter to strike the outer surface of the curved portion 11.

My heater consists of a hollow shell 14: which closely embraces the outer portion of the bend 11 and is held by a band 15 which is fastened at one end to the shell by a pin 16 and at the other end by a screw 17. A strip of asbestos packing or the like 18 is held in a suitable groove in the outer edge of the shell, so as to prevent leakage around the shell.

The shell 14 is provided with a shoulder 14* at its lower end which engages the flange 11, thereby fixing the position of the heater on the manifold. When the band 15 is tightened by the screw 17, the shoulder let strikes the flange 11 and the upper end 149 presses against the straight upper part of the manifold 11 The exhaust manifold is preferably tapped and a sheet elbow 19 screwed therein which connects through flexible tubing 20 and an Serial No.- 615,257.

elbow 2.1 with the shell 14 near its upper end. Flexible tubing 22 leads from the bottom of the shell 14 to the atmosphere preferably through a hole in the pan.

It will be understood from the foregoing that with the engine in operation some of the hot exhaust gases will pass through the tubing 20 into the shell, thus heating the bend 11 upon the inner surface of which liquid fuel is deposited and causing this fuel to become vaporized. This action is increased due to the elbow 21 directing the hot exhaust gases directly against the leg 11 at a point where the liquid fuel has a tendency to stop.

While I have shown and described certain embodiments of my invention, it is' to be understood that it is capable of many modifications. Chan es, therefore, in the construction and arrangement may be made without departing from the spirit and scope of the invention as disclosed in the appended claims, in which it is my intention to claim all nov elty inherent in my invention as broadly as possible in view of the prior art.

What I claim as new and desire to secure by Letters Patent, is:

1. In combination, an intake manifold having a. substantially straightupper portion and a curved lower portion terminating in a flanged end, of a heater comprising a shell embracing the outer surface of the curved portion of said manifold and pro vided with a forwardly extending shoulder at its lower end bearing upon the flange of the manifold, and means for holding said shell in contact with said flange.

2. In combination, an intake manifold having a substantially straight upper portion and a curved lower portion terminating in a flanged end, of a heater comprising a shell embracing the outer surface of the curved portion of said manifold and provided with a forwardly extending shoulder at its lower end bearing upon the flange of the manifold, and a band passing around the back of the curved portion of the manifold and holding said shell in contact with the flange of the manifold.

JOSEPH S. LOSEE. 

